Will Arnett No Longer The Voice Of Kitt On Knight Rider

A carmaker conflict has caused NBC to hire Val Kilmer to replace Will Arnett as the voice of KITT on its &quot;Knight Rider&quot; revival.

Arnett (&quot;Arrested Development&quot;) had already completed his part for the pic, which is slated to debut on NBC in less than two weeks. Producers Doug Liman, Dave Bartis and Dave Andron — along with the network and studio — were all fine with his performance.

Problem is, Arnett had a contractual conflict of interest.

For the better part of a decade, Arnett has done voice-over work for General Motors — as the voice of GMC Trucks. NBC&#39;s new &quot;Knight,&quot; however, is &quot;played&quot; by a Ford Mustang.